U
    5i.)                     @   s4   d dl Z d dlmZ d dlmZ G dd deZdS )    N)BaseDatabaseFeatures)cached_propertyc                       s  e Zd ZdZdZdZdZdZdZdZ	dZ
dZdZdZdZdZdZdZdZdZdZdZdZdZdZdZdZdZedd ZdZed	d
 Zedd Z edd Z!edd Z"edd Z#e fddZ$edd Z%e&e'(dZ)edd Z*edd Z+edd Z,e&e'(dZ-edd  Z.e&e'(d!Z/ed"d# Z0ed$d% Z1ed&d' Z2ed(d) Z3ed*d+ Z4ed,d- Z5ed.d/ Z6ed0d1 Z7ed2d3 Z8ed4d5 Z9ed6d7 Z:ed8d9 Z;ed:d; Z<  Z=S )<DatabaseFeatures TFz
        CREATE PROCEDURE test_procedure ()
        BEGIN
            DECLARE V_I INTEGER;
            SET V_I = 1;
        END;
    z
        CREATE PROCEDURE test_procedure (P_I INTEGER)
        BEGIN
            DECLARE V_I INTEGER;
            SET V_I = P_I;
        END;
    c                 C   s:   d}| j jr| j jdkrd}| d| d| ddS )Nutf8
      Zutf8mb3Z_general_ciZ_esperanto_ciZ_swedish_ci)ciZnon_defaultZ
swedish_ci
connectionmysql_is_mariadbmysql_version)selfcharsetr   r   E/tmp/pip-unpacked-wheel-gcyiijx6/django/db/backends/mysql/features.pytest_collations3   s    z DatabaseFeatures.test_collationsZUTC_TIMESTAMPc                 C   s   ddhddhdhdhd}d| j jkr8|d	d
dhi | j jsd| j jdk rd|ddhddhd | j jrd| j j  k rdk rn n|ddhi | j jrd| j j  k rdk rn n|ddhi | js|ddhi |S )NzLdb_functions.comparison.test_greatest.GreatestTests.test_coalesce_workaroundzFdb_functions.comparison.test_least.LeastTests.test_coalesce_workaroundz5model_fields.test_textfield.TextFieldTests.test_emojiz4model_fields.test_charfield.TestCharField.test_emojiz;schema.tests.SchemaTests.test_func_index_json_key_transformzDexpressions.tests.FTimeDeltaTests.test_durationfield_multiply_divide)zThis doesn't work on MySQL.z4Running on MySQL requires utf8mb4 encoding (#18392).zHMySQL doesn't support functional indexes on a function that returns JSONzkMySQL supports multiplying and dividing DurationFields by a scalar value but it's not implemented (#25287).ZONLY_FULL_GROUP_BYzjGROUP BY optimization does not work properly when ONLY_FULL_GROUP_BY mode is enabled on MySQL, see #31331.zTaggregation.tests.AggregateTestCase.test_aggregation_subquery_annotation_multivaluedzSannotations.tests.NonAggregateAnnotationTestCase.test_annotation_aggregate_with_m2o)   zSaggregation.tests.AggregateTestCase.test_aggregation_default_using_time_from_pythonzWaggregation.tests.AggregateTestCase.test_aggregation_default_using_datetime_from_pythonzUaggregation.tests.AggregateTestCase.test_aggregation_default_using_time_from_databasezYaggregation.tests.AggregateTestCase.test_aggregation_default_using_datetime_from_database)zBCasting to datetime/time is not supported by MySQL < 8.0. (#30224)zBMySQL < 8.0 returns string type instead of datetime/time. (#30224))r         )r         z*https://jira.mariadb.org/browse/MDEV-19598zCschema.tests.SchemaTests.test_alter_not_unique_field_to_primary_key)r   r      )r   r   z*https://jira.mariadb.org/browse/MDEV-22775zBschema.tests.SchemaTests.test_alter_pk_with_self_referential_fieldz%MariaDB and MySQL >= 8.0.18 specific.z4queries.test_explain.ExplainTests.test_mysql_analyze)r   sql_modeupdater   r   supports_explain_analyze)r   skipsr   r   r   django_test_skipsA   st     
 
z"DatabaseFeatures.django_test_skipsc                 C   s   | j jd S )zGInternal method used in Django tests. Don't rely on this from your codeZdefault_storage_enginer   Zmysql_server_datar   r   r   r   _mysql_storage_engine   s    z&DatabaseFeatures._mysql_storage_enginec                 C   s   d| j jkS )zt
        Autoincrement primary key can be set to 0 if it doesn't generate new
        autoincrement values.
        ZNO_AUTO_VALUE_ON_ZERO)r   r   r   r   r   r   allows_auto_pk_0   s    z!DatabaseFeatures.allows_auto_pk_0c                 C   s   | j jo| j jdkS )N)r   r   r   r   r   r   r   r   update_can_self_select   s    z'DatabaseFeatures.update_can_self_selectc                 C   s
   | j dkS )z-Confirm support for introspected foreign keysMyISAMr    r   r   r   r   can_introspect_foreign_keys   s    z,DatabaseFeatures.can_introspect_foreign_keysc                    s   t  jdddddS )NZ	TextFieldZIntegerFieldZBigIntegerFieldZ	CharField)ZBinaryFieldZBooleanFieldZDurationFieldZGenericIPAddressField)superintrospected_field_typesr   	__class__r   r   r'      s    z)DatabaseFeatures.introspected_field_typesc                 C   s   | j jo| j jdkS )N)r   r   r   r   r   r   r   r   can_return_columns_from_insert   s    z/DatabaseFeatures.can_return_columns_from_insertr*   c                 C   s   | j jd S )Nhas_zoneinfo_databaser   r   r   r   r   r+      s    z&DatabaseFeatures.has_zoneinfo_databasec                 C   s   | j jd S )NZsql_auto_is_nullr   r   r   r   r   is_sql_auto_is_null_enabled   s    z,DatabaseFeatures.is_sql_auto_is_null_enabledc                 C   s   | j jrdS | j jdkS )NT)r   r   r   r   r   r   r   r   supports_over_clause   s    z%DatabaseFeatures.supports_over_clauser-   c                 C   s    | j jr| j jdkS | j jdkS )N)r   r      r   r      r   r   r   r   r   !supports_column_check_constraints   s    z2DatabaseFeatures.supports_column_check_constraintsr1   c                 C   s4   | j jr(| j j}|dkr |dk p&|dkS | j jdkS )N)r   r      )r   r   )r   r   r   r/   r   )r   versionr   r   r    can_introspect_check_constraints   s    z1DatabaseFeatures.can_introspect_check_constraintsc                 C   s    | j jr| j jdkS | j jdkS )Nr   r   r   r.   r   r   r   r   r   !has_select_for_update_skip_locked   s    z2DatabaseFeatures.has_select_for_update_skip_lockedc                 C   s    | j jr| j jdkS | j jdkS )N)r   r   r   r5   r   r   r   r   r   has_select_for_update_nowait   s    z-DatabaseFeatures.has_select_for_update_nowaitc                 C   s   | j j o| j jdkS Nr5   r   r   r   r   r   has_select_for_update_of   s    z)DatabaseFeatures.has_select_for_update_ofc                 C   s   | j jp| j jdkS )N)r   r      r   r   r   r   r   r      s    z)DatabaseFeatures.supports_explain_analyzec                 C   s,   dddh}| j js(| j jdkr(|d |S )NZJSONZTEXTZTRADITIONALr/   ZTREE)r   r   r   add)r   formatsr   r   r   supported_explain_formats   s    

z*DatabaseFeatures.supported_explain_formatsc                 C   s
   | j dkS )zI
        All storage engines except MyISAM support transactions.
        r#   r$   r   r   r   r   supports_transactions   s    z&DatabaseFeatures.supports_transactionsc                 C   s   | j jd S )NZlower_case_table_namesr   r   r   r   r   ignores_table_name_case   s    z(DatabaseFeatures.ignores_table_name_casec                 C   s
   | j j S N)r   r   r   r   r   r   supports_default_in_lead_lag   s    z-DatabaseFeatures.supports_default_in_lead_lagc                 C   s    | j jr| j jdkS | j jdkS )N)r   r      )r   rB   r   r   r   r   r   r   supports_json_field   s    z$DatabaseFeatures.supports_json_fieldc                 C   s   | j jr| jo| jS | jS r@   )r   r   rC   r4   r   r   r   r   can_introspect_json_field   s    z*DatabaseFeatures.can_introspect_json_fieldc                 C   s   | j j o| j jdkS r8   r   r   r   r   r   supports_index_column_ordering   s    

z/DatabaseFeatures.supports_index_column_orderingc                 C   s   | j j o| j jdkS )N)r   r      r   r   r   r   r   supports_expression_indexes  s    

z,DatabaseFeatures.supports_expression_indexes)>__name__
__module____qualname__Zempty_fetchmany_valueZallows_group_by_pkZrelated_fields_match_typeZallow_sliced_subqueries_with_inZhas_select_for_updateZsupports_forward_referencesZsupports_regex_backreferencingZ!supports_date_lookup_using_stringZsupports_timezonesZ-requires_explicit_null_ordering_when_groupingZcan_release_savepointsZatomic_transactionsZcan_clone_databasesZsupports_temporal_subtractionZsupports_select_intersectionZsupports_select_differenceZ%supports_slicing_ordering_in_compoundZsupports_index_on_text_fieldZhas_case_insensitive_likeZ(create_test_procedure_without_params_sqlZ(create_test_procedure_with_int_param_sqlZsupports_partial_indexesZcollate_as_index_expressionZ supports_order_by_nulls_modifierZorder_by_nulls_firstr   r   Ztest_now_utc_templater   r    r!   r"   r%   r'   r*   propertyoperator
attrgetterZ can_return_rows_from_bulk_insertr+   r,   r-   Z#supports_frame_range_fixed_distancer1   Z supports_table_check_constraintsr4   r6   r7   r9   r   r=   r>   r?   rA   rC   rD   rE   rG   __classcell__r   r   r(   r   r      s   

@


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	









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


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

r   )rL   Z django.db.backends.base.featuresr   Zdjango.utils.functionalr   r   r   r   r   r   <module>   s   